RIGOL Measurement Examples
3-4 User’s Guide for DSA1000 Series
3.2 Using the Frequency Counter
In order to get the precision frequency of the signal, the analyzer provides a frequency
counter that is a much more precise frequency measurement than the Marker. In the
example below, we use a generator (such as RIGOL DG3101A) to output a sine signal
with 100 MHz and -10 dBm as the signal under measure.
Procedures:
1. Device attachment
Connect the output terminal of the generator to the RF INPUT 50Ω terminal on
the front panel of the analyzer.
2. Use the frequency counter to measure
(1) Reset the analyzer
－Press Preset
(2) Set the parameters
－Press FREQ
－Press Center Freq and enter 100 MHz.
－Press SPAN
－Press Span and enter 10 MHz.
(3) Open a marker
－Press Marker
A marker is activated.
－Press Peak
The peak is identified by a marker, and the frequency and amplitude of this
signal are displayed at the top right of the grid.
(4) Use the frequency counter to measure
－Press Marker Fctn
－Press Freq Count and enter the lower menu.
－Press State-On On, and the frequency will be shown in the active area
and the top right corner of the grid.
(5) Set the measuring resolution of the Counter
－Press Resolution and enter 1 Hz.
3. Measurement result
The result is 99.998459 MHz (with an accuracy of 1 Hz), see figure below.
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